And whenever a plague struck them, they would cry: "O Moses, pray for us to thy Sustainer on the strength of the covenant [of prophethood] which He has made with thee! If thou remove this plague from us, we will truly believe in thee. and will let the children of Israel go with thee!"

But those among them who were bent on wrongdoing substituted another saying for that which they had been given: and so We let loose against them a plague from heaven in requital of all their evil doings.*

[Remember how it was] when He caused inner calm to enfold you,* as an assurance from Him, and sent down upon you water from the skies, so that He might purify you thereby and free you from Satan's unclean whisperings* and strengthen your hearts and thus make firm your steps.

[To pay heed to God's signs and messages:] this is [the meaning of] guidance; on the other hand,* for those who are bent on denying the truth of their Sustainer's messages there is grievous suffering in store as an outcome of [their] vileness.*